Strange that they didn't get convicted of manslaughter. They
can't get done for murder as there was no intention to do GBH, but
as they did cause GBH, and a death resulted, it goes to becoming
murder.
I'm not sure about the Singapore Penal Code, but from what I
understand, provocation is a full defence against assault based
offences and a partial defence against homicide based
offences.
Kind of strange how this one went.